fix(package): update fs-extra to version 5.0.0

Author: greenkeeper[bot]

package.json

@@ -18,7 +18,7 @@
   "dependencies": {
     "@semantic-release/error": "^2.1.0",
     "execa": "^0.8.0",
-    "fs-extra": "^4.0.2",
+    "fs-extra": "^5.0.0",
     "lodash": "^4.17.4",
     "nerf-dart": "^1.0.0",
     "npm-conf": "^1.1.3",